Laserfiche WebLink
1 <br /> Quarterly Monctoring Report October 2000 <br />' CanLpa s Car Wash (Park Street) <br /> January 25 2001 <br /> Page 2 <br />' noted In tlae gtoundwater inspection sample collected from MW-2 A moderate to strong odot, but no <br /> sheen, was noted in the groundwater tnspectton sample collected from MW-5 None of the other <br />' gioundwatet Inspection samples were noted as having an odor or a sheen <br /> All monitor wells wete purged using new, disposable bailers Approximately three well casing volumes <br />' of water were purged fiom each well (see the Groundwater Monitoring Field Forms in Appendix B) The <br /> purged water fiotn each well was placed in 55-gallon diums and left on site pending laboratory analytical <br /> results <br /> I3.2 GROUNDWATER SAMPLING <br /> The groundwater samples from the monitor wells were collected by filling three 40-milliliter glass vials <br /> with groundwater directly from the bottom emptying device attached to the disposable bailers The <br /> sample containeis were labeled, placed in a cooler chilled with ice, and delivered in accordance with <br /> chain of-custody procedures to Excelchem Environmental Labs, Inc , in Roseville, California for <br /> analyses <br /> 4 GROUNDWATER MONITORING RESULTS <br /> 4 1 GROUNDWATER ELEVATION CONTOURS <br /> On January 2, 2001, the depth to groundwater was measured in each monitor well prior to the collection <br /> of groundwater samples The average depth to groundwater on January 2, 2001, was approximately 24 0 <br /> feet below the well measuring points The average depth to groundwater increased approximately 0 4 <br /> feet since the previous monitoring event conducted in October 2000 Tile groundwater elevation ranged <br /> from 12 20 to 13 84 feet below mean sea level (burst) The groundwater elevation contour reap (Figure 2, <br /> Appendix A) indicates a groundwatei gradient generally toward the northeast Groundwater elevation <br /> data Is piesented in Table 1, on the next page A hydrograph of groundwater elevations is included as <br />' Figure 5, Appendix A Note from the hydiograph In Figure 5 and a comparison of tlae top of the well <br /> casing screen Inteival versus the depth to watei in fable 1 that the water table is approximately 16 to 22 <br /> feet above the top of the screen in all of the wells <br /> r <br /> i <br /> i <br /> • <br /> i <br /> i %: <br /> canrooe <br />